47266649 has 4 divisors (see below), whose sum is σ = 48544164. Its totient is φ = 45989136.

The previous prime is 47266627. The next prime is 47266663. The reversal of 47266649 is 94666274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42159049 + 5107600 = 6493^2 + 2260^2 .

It is a cyclic number.

It is not a de Polignac number, because 47266649 - 2⁸ = 47266393 is a prime.

It is a super-2 number, since 2×47266649² = 4468272215378402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47266949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638702 + ... + 638775.

It is an arithmetic number, because the mean of its divisors is an integer number (12136041).

Almost surely, 2^47266649 is an apocalyptic number.

It is an amenable number.

47266649 is a deficient number, since it is larger than the sum of its proper divisors (1277515).

47266649 is a wasteful number, since it uses less digits than its factorization.

47266649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277514.

The product of its digits is 435456, while the sum is 44.

The square root of 47266649 is about 6875.0744723239. The cubic root of 47266649 is about 361.5637965009.

The spelling of 47266649 in words is "forty-seven million, two hundred sixty-six thousand, six hundred forty-nine".